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OneK Helmets
The OneK helmets are known for a beautiful design and high build quality for a much lower price than other brands in this segment.
All OneK helmets are approved according to the VG01 and EN1382-2017 quality marks and have excellent ventilation with multiple vents!
There are 3 shell sizes (0, 1 and 2) and 8 sizes of liners. The liner is washable, moisture wicking and anti-bacterial.
The liner is free with the purchase of a OneK cap!
Size chart
| Shell | Liner size | Size in CM |
| 0 | XXXS (not in oval) | 47-48 |
| 0 | XXS (not in oval) | 49-50 |
| 0 | XS | 51-52 |
| 0 | S | 53-54 |
| 1 | XS | 51-52 |
| 1 | S | 53-54 |
| 1 | M | 55-56 |
| 2 | M | 55-56 |
| 2 | L | 57-58 |
| 2 | XL | 59-60 |
| 2 | XXL | 61-62 |
